Threaded tamper evidence finish and closure for container

ABSTRACT

A tamper evidence closure is provided for rotatably engaging with a finish of a container to seal contents within the interior of the container. A multiplicity of thin connections attach a tamper evidence band to a circumference of the tamper evidence closure. A segmented cam extends around the circumference of the tamper evidence band. An angled lower surface of the cam facilitates passing the tamper evidence band over a tamper evidence ledge of the finish during assembly of the tamper evidence closure onto the container. An upper surface of the cam engages with the tamper evidence ledge to break the thin connections and retain the tamper evidence band positioned on the finish during loosening of the tamper evidence closure. Multiple overhang portions above the cam press against an upper portion of the tamper evidence ledge to ensure that the tamper evidence band remains engaged with the tamper evidence ledge.

PRIORITY

This application claims priority to U.S. Provisional Patent ApplicationsNo. 62/724,548, filed Aug. 29, 2018, the disclosure of which is herebyincorporated herein by reference in its entirety.

FIELD

Embodiments of the present disclosure generally relate to the field ofplastic bottles and preforms. More specifically, embodiments of thedisclosure relate to tamper evidence container caps and preforms thatprovide visible indications of removal of the container caps afterinstallation by a manufacturer.

BACKGROUND

Plastic containers have been used as a replacement for glass or metalcontainers in the packaging of beverages for several decades. The mostcommon plastic used in making beverage containers today is polyethyleneterephthalate (PET). Containers made of PET are transparent, thinwalled, and have the ability to maintain their shape by withstanding theforce exerted on the walls of the container by their contents. PETresins are also reasonably priced and easy to process. PET bottles aregenerally made by a process that includes the blow-molding of plasticpreforms which have been made by injection molding of the PET resin.

Advantages of plastic packaging include lighter weight and decreasedbreakage as compared to glass, and lower costs overall when taking bothproduction and transportation into account. Although plastic packagingis lighter in weight than glass, there is still great interest increating the lightest possible plastic packaging so as to maximize thecost savings in both transportation and manufacturing by making andusing containers that contain less plastic.

A plastic container for storing liquid contents typically includes abase that extends up to a grip portion suitable for affixing a label, aswell as providing a location for grasping the container. The gripportion generally transitions into a shoulder, which connects to a bell.The bell has a diameter that generally decreases as the bell extendsupward from the shoulder to a neck and a finish. The finish is adaptedto receive a closure, such as a bottle cap, to seal the contents withinthe interior of the plastic container.

In many instances, the closure includes a tamper evidence band that isdisposed around the perimeter of the finish. The tamper evidence bandgenerally remains positioned on the finish when an end-user loosens theclosure to access the contents within the container. As such, the tamperevidence band and the finish cooperate to indicate to the end-userwhether or not the closure has been previously loosened after beinginstalled by the manufacturer.

A drawback to conventional tamper evidence bands, however, is that insome instances the tamper evidence bands fail to detach from the closureupon being loosened, thereby making it difficult for an end-user todirectly observe whether or not the closure has been previouslyseparated from the container. Consequently, the closure may be separatedfrom the tamper evidence band, the container may be refilled, andanother closure may be installed onto the container, giving littlevisual indication to the end-user that the container has been reused.

What is needed, therefore, is a tamper evidence closure that reliablyprovides a visible indication about whether or not amanufacturer-installed closure has been previously removed from aplastic container.

SUMMARY

Systems and methods for threaded tamper evidence finish and closure forcontainers include a finish portion of a preform for rotatably engagingwith a tamper evidence closure to seal contents within an interior of acontainer formed from the preform including a cylindrical body thatbegins at an opening to the interior of the container and extends to andincludes a tamper evidence ledge, one or more threads configured toprovide a means to fasten the tamper evidence closure to the container,a handling valley disposed between the one or more threads and thetamper evidence ledge, and a bevel disposed at a beginning of theopening and configured to receive a sealing flange of the cap.

In a further embodiment, the tamper evidence ledge is configured tocooperate with a tamper evidence band of the closure to indicate whetheror not the closure has been loosened after being installed by amanufacturer.

In another embodiment, the handling valley and the neck portion areconfigured to enable gripping fingers to engage with and support thecontainer during air-conveying the container along a manufacturingassembly.

In a still further embodiment, the handling valley provides a separationbetween the tamper evidence ledge and the one or more threads suitablefor receiving a pair of gripping fingers of an air conveyor system.

In still another embodiment, the tamper evidence closure includes atamper evidence band disposed around the circumference of the tamperevidence closure and attached thereto by way of a multiplicity of thinconnections.

In a yet further embodiment, the tamper evidence band includes asegmented cam that includes an angled lower surface configured tofacilitate passing the tamper evidence band over the one or more threadsand the tamper evidence ledge during assembly of the tamper evidenceclosure onto the finish.

In yet another embodiment, the segmented cam includes an upper surfacethat is configured to engage with the tamper evidence ledge so as toretain the tamper evidence band positioned on the finish duringloosening of the tamper evidence closure, the multiplicity of thinconnections breaking during loosening of the tamper evidence closure.

In a further embodiment again, the tamper evidence closure includes amultiplicity of overhang portions configured to press against an upperportion of the tamper evidence ledge to ensure that the tamper evidenceband remains engaged with the tamper evidence ledge after removal of thetamper evidence closure from the finish.

In another embodiment again, the tamper evidence band is configured toremain positioned on the finish after the tamper evidence closure isremoved from the container, thereby indicating that the tamper evidenceclosure has been loosened after being installed by a manufacturer.

In many embodiments, a tamper evidence closure for rotatably engagingwith a finish of a container to seal contents within the interior of thecontainer includes interior threads that are configured to engage withthreads of the finish, a plug seal configured to extend into an openingof the finish whereby contents are sealed in the interior of thecontainer, a multiplicity of thin connections attaching a tamperevidence band to a circumference of the tamper evidence closure, asegmented cam extending around the circumference of the tamper evidenceband, and a multiplicity of overhang portions disposed above thesegmented cam.

In a further additional embodiment, the segmented cam includes an angledlower surface configured to facilitate passing the tamper evidence bandover the threads and a tamper evidence ledge of the finish duringassembly of the tamper evidence closure onto the container.

In another additional embodiment, the segmented cam includes an uppersurface configured to engage with a tamper evidence ledge of the finishto retain the tamper evidence band positioned on the finish duringloosening of the tamper evidence closure, the multiplicity of thinconnections breaking during loosening of the tamper evidence closure.

In a still yet further embodiment, the multiplicity of overhang portionsare configured to press against an upper portion of a tamper evidenceledge of the finish to ensure that the tamper evidence band remainsengaged with the tamper evidence ledge after removal of the tamperevidence closure from the finish.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings refer to embodiments of the present disclosure in which:

FIG. 1 illustrates a side plan view of an exemplary embodiment of apreform suitable for being blow-molded to form a container in accordancewith the present disclosure;

FIG. 2 illustrates a cross-sectional slice view of the preformillustrated in FIG. 1 , taken along a line 2-2, according to the presentdisclosure;

FIG. 3 illustrates an isometric view of a finish portion comprising thepreform of FIGS. 1-2 ; and

FIG. 4 illustrates a cross-sectional view of a tamper evidence closuresuitable for being coupled with the finish portion of FIG. 3 to providean indication of whether or not the closure has been loosened afterbeing installed by a manufacturer.

While the present disclosure is subject to various modifications andalternative forms, specific embodiments thereof have been shown by wayof example in the drawings and will herein be described in detail. Theinvention should be understood to not be limited to the particular formsdisclosed, but on the contrary, the intention is to cover allmodifications, equivalents, and alternatives falling within the spiritand scope of the present disclosure.

DETAILED DESCRIPTION

In the following description, numerous specific details are set forth inorder to provide a thorough understanding of the present disclosure. Itwill be apparent, however, to one of ordinary skill in the art that theinvention disclosed herein may be practiced without these specificdetails. In other instances, specific numeric references such as “firstpreform,” may be made. However, the specific numeric reference shouldnot be interpreted as a literal sequential order but rather interpretedthat the “first preform” is different than a “second preform.” Thus, thespecific details set forth are merely exemplary. The specific detailsmay be varied from and still be contemplated to be within the spirit andscope of the present disclosure. The term “coupled” is defined asmeaning connected either directly to the component or indirectly to thecomponent through another component. Further, as used herein, the terms“about,” “approximately,” or “substantially” for any numerical values orranges indicate a suitable dimensional tolerance that allows the part orcollection of components to function for its intended purpose asdescribed herein.

Disclosed herein are articles, including preforms and tamper evidenceclosures for containers. In some instances, conventional tamper evidencebands fail to detach from the closure upon being loosened, therebymaking it difficult for an end-user to directly observe whether or notthe closure has been previously separated from the container.Consequently, the end-user has little visual indication of whether thecontainer has been reused. Embodiments disclosed herein provide apreform and a tamper evidence closure that reliably provides a visibleindication about whether or not a manufacturer-installed closure hasbeen previously removed from a plastic container.

FIG. 1 illustrates an exemplary embodiment of a preform 100 suitable forbeing blow-molded to form a container, or a plastic bottle, according tothe present disclosure. The preform 100 preferably can be made ofmaterial approved for contact with food and beverages such as virgin PETand can be of any of a wide variety of shapes and sizes. The preform 100shown in FIG. 1 can be of the type which will form a 12-16 oz. beveragebottle, but as will be understood by those skilled in the art, otherpreform configurations may be used depending upon the desiredconfiguration, characteristics and use of the final article. The preform100 may be made by injection molding methods, without limitation.

FIG. 2 illustrates a cross-sectional slice view of the preform 100illustrated in FIG. 1 , taken along a line 2-2. The preform 100 includesa finish portion 104 and a body portion 108, formed monolithically(i.e., as a single, or unitary, structure). Advantageously, themonolithic arrangement of the preform 100, when blow-molded into abottle, provides greater dimensional stability and improved physicalproperties in comparison to a preform constructed of separate neck andbody portions that are bonded together.

The finish portion 104 begins at an opening 112 to an interior of thepreform 100 and extends to and includes a tamper evidence ledge 116. Thefinish portion 104 can be further characterized by the presence of oneor more threads 120 configured to provide a means to fasten a closure,such as a cap, to the bottle produced from the perform 100. As such, thethreads 120 are configured to rotatably engage with similar threadsdisposed within the cap to provide a way to seal contents within thebottle. In the embodiment illustrated in FIG. 1 , each of the threads120 generally extends along a section of the circumference of the finishportion 104 and approaches the tamper evidence ledge 116. Thus, when thethreads of a cap are engaged with the threads 120, and the cap can berotated in a clockwise direction, the cap advances toward the tamperevidence ledge 116.

As best shown in FIG. 1 , each of the one or more threads 120 begins ata thread start 124 and extends along an angular section of the finishportion 104. The thread start 124 may be configured to guide the thread120 into a space, or valley 128, between adjacent threads of the cap soas to threadably engage the cap with the finish portion 104. Further,the threads 120 generally are disposed adjacently to one another and arespaced uniformly around the circumference of the finish portion 104. Insome embodiments, wherein three threads 120 are disposed around thefinish portion 104, the thread starts 124 of adjacent threads 120 arespaced at substantially 120-degree intervals around the perimeter of thefinish portion 104. As will be appreciated, however, more or less thanthree threads 120 may be incorporated into the finish portion 104without deviating beyond the scope of the present disclosure.

The body portion 108 includes a neck portion 132 that extends to atapered portion 136 of the body portion 108. The tapered portion 136comprises a smooth transition from a diameter of the neck portion 132 toa relatively smaller diameter of a cylindrical portion 140 of thepreform 100. The cylindrical portion 140 can be a generally elongatemember that culminates in an end cap 144. In some embodiments the bodyportion 108 may be generally cylindrical, and the end cap 144 may beconical or frustoconical and may also be hemispherical, and the veryterminus of the end cap 144 may be flattened or rounded.

As best shown in FIG. 2 , a wall thickness of the cylindrical portion140 can be substantially uniform throughout the cylindrical portion 140and the end cap 144. A wall thickness of the tapered portion 136,however, generally decreases from the wall thickness of the cylindricalportion 140 to a relatively thinner wall thickness of the neck portion132. As will be appreciated, the wall thickness of the cylindricalportion 140 can be relatively greater than the wall thickness of theneck portion 132 so as to provide a wall thickness at the desireddimensions of a finished product after the preform 100 is blow-moldedinto the shape and size of a bottle. As such, the wall thicknessthroughout most of the body portion 108 will depend upon the overallsize of the perform 100 and the wall thickness and overall size of theresulting container.

FIG. 3 illustrates an isometric view of the finish portion 104comprising the preform 100 illustrated in FIGS. 1-2 , according to thepresent disclosure. As described hereinabove, the finish portion 104includes one or more threads 120 extending along sections of thecircumference of the finish portion 104 and approaching the tamperevidence ledge 116. The threads 120 generally extend outward from thefinish portion 104 such that a valley 128 can be disposed betweenadjacent threads. The cross-sectional profile of the threads 120 may beconfigured such that the threads advantageously engage with similarthreads disposed within the cap for sealing contents within thecontainer formed by blow-molding the preform 100. As will be recognizedby those skilled in the art, the valley 128 can be configured to allowpassage of a thread disposed in the cap to pass between adjacent threads120 during tightening of the cap onto the finish portion 104.

With continuing reference to FIG. 3 , the finish portion 104 includes abevel 148 disposed at the beginning of the opening 112. The bevel 148can be configured to enter into sliding contact with a sealing flange ofa suitable cap so as to prevent contents from leaking out of thecontainer formed from the preform 100. In some embodiments, the bevel148 may compress the sealing flange to a predetermined degree, therebyforming a tight seal suitable to retain pressurized contents within thecontainer.

As further shown in FIG. 3 , the tamper evidence ledge 116 comprises arounded upper portion 152 and a substantially flat lower portion 156. Aswill be appreciated, the rounded upper portion 152 facilitates passing atamper evidence band of the cap over the tamper evidence ledge 116during assembly of the cap onto the container. The flat lower portion156 can be configured to retain the tamper evidence band positionedbelow the tamper evidence ledge 116 during loosening of the cap. Forexample, when the cap is initially installed onto the container by amanufacturer, the tamper evidence band easily passes over the tamperevidence ledge 116 due to the rounded upper portion 152. When anend-user later loosens the cap, the flat lower portion 156 retains thetamper evidence band below the tamper evidence ledge 116, causing thetamper evidence band to break loose from the cap. Thus, the flat lowerportion 156 of the tamper evidence ledge 116 and the tamper evidenceband of the cap cooperate to indicate to the end-user that the cap hasnot been previously loosened after being installed by the manufacturer.It should be understood, however, that the tamper evidence ledge 116 isnot limited to being coupled with tamper evidence bands, as describedabove, but rather the tamper evidence ledge 116 may be configured tooperate with any of various devices for indicating whether or not thecontainer has been previously opened.

Disposed between the tamper evidence ledge 116 and the threads 120 is ahandling valley 160 that extends circumferentially around the finishportion 104. Further, the handling valley 160 comprises a portion of thefinish 104 that has a wall thickness and a diameter that aresubstantially similar to the wall thickness and diameter of the neckportion 132, below the tamper evidence ledge 116. As such, the handlingvalley 160 and the neck portion 132 advantageously enable grippingfingers to engage with and support the container during air-conveyingthe container along a manufacturing assembly. For example, a first pairof gripping fingers can extend into the handling valley 160 to supportthe container at a first station of a manufacturing line. Then, uponbeing conveyed to a second station, a second pair of gripping fingerscan extend around the neck portion 132, below the tamper evidence ledge116, while the first pair of gripping fingers are removed from thehandling valley 160. Similarly, upon arriving at a third station, athird pair of gripping fingers can engage with the handling valley 160while the second pair of gripping fingers are removed from the neckportion 132. Thus, the container can be transported along themanufacturing line by alternatingly engaging gripping fingers with thehandling valley 160 and the neck portion 132.

As will be appreciated, the handling valley 160 provides a separationbetween the tamper evidence ledge 116 and the threads 120 suitable forreceiving the pair of gripping fingers, as described above. In general,the separation must be large enough to allow the gripping fingers toeasily pass between the tamper evidence ledge 116 and the threads 120.As such, any of various separations, greater than the width of thegripping fingers, may be disposed between the tamper evidence ledge 116and the threads 120, without limitation and without deviating beyond thescope of the present disclosure.

FIG. 4 illustrates a cross-sectional view of a tamper evidence closure164 suitable for being threadably engaged with the finish 104 of FIG. 3to provide an indication of whether or not the closure 164 has beenloosened after being installed by a manufacturer. The closure 164includes interior threads 176 that are configured to engage with thethreads 120 of the finish 104, as described above. As such, the threads176 extend into the thread valleys 128 extending around the finish 104.During tightening of the closure 164 onto the finish 104, a plug seal168 of the closure 164 can be configured to extend into the opening 112and enter into a pressed relationship with the finish 104 wherebycontents are sealed in the interior of a container formed from thepreform 100 (hereinafter “container 100”).

As further shown in FIG. 4 , the closure 164 includes a tamper evidenceband 166 that includes a segmented cam 200 and can be disposed aroundthe perimeter of the closure 164. The tamper evidence band 166 can beattached to the closure 164 by a multiplicity of thin connections 204.The segmented cam 200 generally comprises an angled lower surface 208configured to facilitate passing the tamper evidence band 166 over thethreads 120 and the rounded upper portion 152 of the tamper evidenceledge 116 during assembly of the closure 164 onto the container 100. Arelatively flat upper surface 212 of the segmented cam 200 may beconfigured to engage with the flat lower portion of the tamper evidenceledge 116 and thus retain the tamper evidence band 166 engaged with thetamper evidence ledge 116 during loosening of the closure 164.

Once the closure 164 can be installed onto the finish 104 by amanufacturer and later an end-user loosens the closure 164, thesegmented cam 200 presses against the flat lower portion 156 of thetamper evidence ledge 116, breaking the thin connections 204 betweentamper evidence band 166 and the closure 164. The tamper evidence band166 remains positioned on the tamper evidence ledge 116 after theclosure 164 is removed from the container 100. Multiple overhangportions 216 disposed above the segmented cam 200 of the closure 164 areconfigured to press against the rounded upper portion 152 of the tamperevidence ledge 116. The overhand portions 216 ensure that the tamperevidence band 166, once free of the closure 164, does not fall below thetamper evidence ledge 116 and reside around the neck 132 of thecontainer 100. Thus, the tamper evidence band 166 cooperates with thetamper evidence ledge 116 to indicate to the end-user whether or not theclosure 164 has been previously loosened after being installed by themanufacturer.

The articles described herein may be made from any suitablethermoplastic material, such as polyesters including polyethyleneterephthalate (PET), polyolefins, including polypropylene andpolyethylene, polycarbonate, polyamides, including nylons (e.g. Nylon 6,Nylon 66, MXD6), polystyrenes, epoxies, acrylics, copolymers, blends,grafted polymers, and/or modified polymers (monomers or portion thereofhaving another group as a side group, e.g. olefin-modified polyesters).These materials may be used alone or in conjunction with each other.More specific material examples include, but are not limited to,ethylene vinyl alcohol copolymer (“EVOH”), ethylene vinyl acetate(“EVA”), ethylene acrylic acid (“EAA”), linear low density polyethylene(“LLDPE”), polyethylene 2,6- and 1,5-naphthalate (PEN), polyethyleneterephthalate glycol (PETG), poly(cyclohexylenedimethyleneterephthalate), polystryrene, cycloolefin, copolymer,poly-4-methylpentene-1, poly(methyl methacrylate), acrylonitrile,polyvinyl chloride, polyvinylidine chloride, styrene acrylonitrile,acrylonitrile-butadiene-styrene, polyacetal, polybutylene terephthalate,ionomer, polysulfone, polytetra-fluoroethylene, polytetramethylene1,2-dioxybenzoate and copolymers of ethylene terephthalate and ethyleneisophthalate. In certain embodiments preferred materials may be virgin,pre-consumer, post-consumer, regrind, recycled, and/or combinationsthereof.

In some embodiments, polypropylene also refers to clarifiedpolypropylene. As used herein, the tem). “clarified polypropylene” is abroad term and can be used in accordance with its ordinary meaning andmay include, without limitation, a polypropylene that includesnucleation inhibitors and/or clarifying additives. Clarifiedpolypropylene is a generally transparent material as compared to thehomopolymer or block copolymer of polypropylene. The inclusion ofnucleation inhibitors helps prevent and/or reduce crystallinity, whichcontributes to the haziness of polypropylene, within the polypropylene.Alternatively, nucleation inhibitors may be added to polypropylene.

As used herein, “PET” includes, but is not limited to, modified PET aswell as PET blended with other materials. One example of a modified PETcan be IP A-modified PET, which refers to PET in which the IP A contentis preferably more than about 2% by weight, including about 2-10% IP Aby weight, also including about 5-10% IP A by weight. In anothermodified PET, an additional comonomer, cylohexane dimethanol (CHDM) canbe added in significant amounts (e.g. approximately 40% by weight ormore) to the PET mixture during manufacture of the resin.

Additives may be included in articles herein to provide functionalproperties to the resulting containers. Such additives include thoseproviding enhanced gas barrier, UV protection, scuff resistance, impactresistance and/or chemical resistance. Preferred additives may beprepared by methods known to those of skill in the art. For example, theadditives may be mixed directly with a particular material, or they maybe dissolved/dispersed separately and then added to a particularmaterial. Additives may be present in an amount up to about 40% of thematerial, also including up to about 30%, 20%, 10%, 5%, 2% and 1% byweight of the material. In some embodiments, additives may be present inan amount less than or equal to 1% by weight, such ranges of materialsincluding, but not limited to, about 0.01% to about 1%, about 0.01% toabout 0.1%, and about 0.1% to about 1% by weight.

Another possible additive can be microparticulate clay or graphene basedmaterials. These materials comprise tiny, micron or sub-micron size(diameter), particles of materials which enhance the barrier and/ormechanical properties of a material by creating a more tortuous path formigrating gas molecules, such as oxygen or carbon dioxide, to take asthey permeate a material and/or providing added stiffness. In someembodiments, nanoparticulate material can be present in amounts rangingfrom 0.05 to 1% by weight, including 0.1%, 0.5% by weight and rangesencompassing these amounts. In some embodiments, nanoparticles comprisemonmorillonite that may be modified with a ternary or quaternaryammonium salt. In some embodiments, such particles comprise organoclaysas described in U.S. Pat. No. 5,780,376, the entire disclosure of whichis hereby incorporated by reference and forms part of the disclosure ofthis application. Other suitable organic and inorganic microparticulateclay based or nano-sized products may also be used. Both man-made andnatural products are also suitable.

In some embodiments, the UV protection properties of the material may beenhanced by the addition of one or more additives. In one embodiment,the UV protection material used provides UV protection up to about 350nm or less, preferably about 370 nm or less, more preferably about 400nm or less. The UV protection material may be used as an additive withlayers providing additional functionality or applied separately as asingle layer. In some embodiments, additives providing enhanced UVprotection are present in the material from about 0.05 to 20% by weight,but also including about 0.1%, 0.5%, 1%, 2%, 3%, 5%, 10%, and 15% byweight, and ranges encompassing these amounts. In some embodiments, theUV protection material is added in a form that can be compatible withthe other materials. In some embodiments, a preferred UV protectionmaterial comprises a polymer grafted or modified with a UV absorber thatcan be added as a concentrate. Other preferred UV protection materialsinclude, but are not limited to, benzotriazoles, phenothiazines, andazaphenothiazines. UV protection materials may be added during the meltphase process prior to use, such as prior to injection molding orextrusion.

While the invention has been described in terms of particular variationsand illustrative figures, those of ordinary skill in the art willrecognize that the invention is not limited to the variations or figuresdescribed. In addition, where methods and steps described above indicatecertain events occurring in certain order, those of ordinary skill inthe art will recognize that the ordering of certain steps may bemodified and that such modifications are in accordance with thevariations of the invention. Additionally, certain of the steps may beperformed concurrently in a parallel process when possible, as well asperformed sequentially as described above. To the extent there arevariations of the invention, which are within the spirit of thedisclosure or equivalent to the inventions found in the claims, it isthe intent that this patent will cover those variations as well.Therefore, the present disclosure is to be understood as not limited bythe specific embodiments described herein, but only by scope of theappended claims.

What is claimed is:
 1. A tamper evidence closure for rotatably engagingwith a finish of a container to seal contents within the interior of thecontainer, the tamper evidence closure comprising: interior threadsconfigured to engage with threads of the finish; a plug seal configuredto extend into an opening of the finish whereby contents are sealed inthe interior of the container; a multiplicity of thin connectionsattaching a tamper evidence band to a circumference of the tamperevidence closure; a segmented cam extending around the circumference ofthe tamper evidence band about a closure axis, the segmented camincluding at least six separated surfaces each having a nonzero andnonorthogonal angle relative to the closure axis, the segmented camintegrally formed as one piece with the tamper evidence band; and aplurality of overhang portions disposed above the segmented cam andconfigured to support the tamper evidence band on an upper portion of atamper evidence ledge of the finish after separation of the tamperevidence closure from the finish, wherein each of the overhang portionsis circumferentially positioned between adjacent separated surfaces ofthe at least six separated surfaces.
 2. The tamper evidence closure ofclaim 1, wherein the at least six separated surfaces are configured tofacilitate passing the tamper evidence band over the threads and thetamper evidence ledge of the finish.
 3. The tamper evidence closure ofclaim 1, wherein the segmented cam includes an upper surface configuredto engage with the tamper evidence ledge of the finish to retain thetamper evidence band positioned on the finish during loosening of thetamper evidence closure.
 4. The tamper evidence closure of claim 3,wherein the upper surface is orthogonal relative to the closure axis. 5.The tamper evidence closure of claim 1, wherein the multiplicity of thinconnections includes at least six thin connections, and wherein each ofthe at least six thin connections is axially aligned with a respectiveseparated surface of the at least six separated surfaces.
 6. The tamperevidence closure of claim 1, wherein each of the overhang portions iscircumferentially centered between adjacent separated surfaces of the atleast six separated surfaces.
 7. The tamper evidence closure of claim 1,wherein each of the overhang portions includes an angled surface on aside nearest the segmented cam.
 8. The tamper evidence closure of claim1, wherein the plurality of overhang portions are integrally formed asone piece with the tamper evidence band.
 9. The tamper evidence closureof claim 1, wherein each thin connection of the multiplicity of thinconnections is coupled on a first end to an inner surface of the tamperevidence band and a on a second end to an inner surface of the tamperevidence closure.
 10. The tamper evidence closure of claim 9, whereineach thin connection of the multiplicity of thin connections extendsacross a gap between the tamper evidence band and the tamper evidenceclosure.
 11. A tamper evidence closure for rotatably engaging with afinish of a container to seal contents within the interior of thecontainer, the tamper evidence closure comprising: interior threads thatare configured to engage with threads of the finish; a multiplicity ofthin connections attaching a tamper evidence band to a circumference ofthe tamper evidence closure; a segmented cam extending around thecircumference of the tamper evidence band about a closure axis, thesegmented cam integrally formed with the tamper evidence band andincluding a plurality of separated surfaces each having a nonzero andnonorthogonal angle relative to the closure axis; and a plurality ofoverhang portions axially spaced from the segmented cam and configuredto support the tamper evidence band on an upper portion of a tamperevidence ledge of the finish after separation of the tamper evidenceclosure from the finish, each overhang portion of the plurality ofoverhang portions circumferentially positioned between adjacentseparated surfaces of the plurality of separated surfaces.
 12. Thetamper evidence closure of claim 11, wherein the plurality of separatedsurfaces includes at least six discrete surfaces.
 13. The tamperevidence closure of claim 11, wherein each of the separated surfaces isconfigured to facilitate passing the tamper evidence band over thethreads and a tamper evidence ledge of the finish during assembly of thetamper evidence closure onto the container.
 14. The tamper evidenceclosure of claim 11, wherein the segmented cam is integrally formed asone piece with the tamper evidence band.
 15. The tamper evidence closureof claim 14, wherein the plurality of overhang portions are integrallyformed as one piece with the segmented cam and the tamper evidence band.16. The tamper evidence closure of claim 11, wherein the segmented camincludes an upper surface configured to engage with the tamper evidenceledge of the finish to retain the tamper evidence band positioned on thefinish during loosening of the tamper evidence closure.
 17. The tamperevidence closure of claim 16, wherein the upper surface is orthogonalrelative to the closure axis.